General information

Mutant name shy2-2
Mutant/Transgenic plant mutant
Ecotype Ler
Mutagenesis type EMS
Dominant/Recessive/Semi-dominant dominant
PMID 9895319
CommentNo comment

Mutated genes

Locus name Alias Hormone Mutated site Paper description
AT1G04240 SHORT HYPOCOTYL 2(SHY2),IAA3 auxin shy2-2 has the proline at amino acid position 69 to serine,shy2-3 changes glycine67 to glutamine,both of the them affect amino acid residues in domain II

Phenotype information

Organ AttributeNo hormoneauxin
Root Agravitropic rootyes-
Lateral rootreduced-
Primary rootshortlong
Cotyledon/Leaf Hyponastic or epinastic leaveshyponastic leaves-
Leaf growth in darkleaves in dark-
otherCotyledons are larger-
Hypocotyl/Stem Agravitropic hypocotylsyes-
Hypocotyl lengthshort hypocotylslong hypocotyls
Internode lengthshort internode, reduced stem elongation-
Nonphototropic hypocotylsin red light-
Plant heightdwarf, reduced height-
Shoot apical hookhookless-
otherDark-grown shy2-2 seedlings had short hypocotyls, expanded cotyledons, opened apical hooks, and true leaf primordia-